Spine
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Prospective clinical study. A quantification of volume and hydration variation of the intervertebral discs, using magnetic resonance imaging (MRI), in the lumbar spine before and after surgery performed in adolescent idiopathic scoliosis (AIS). ⋯ This work was the first report dealing with consequences of scoliosis surgery on subjacent disc in term of volume and hydration properties.
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Controlled in vitro trial. ⋯ Endplate-to-endplate PMMA augmentation restores the biomechanical properties of vertebrae in clinically relevant anterior wedge fractures. Our preliminary data suggest that biomechanical models with only 25% compressive deformation unlikely form a good model to assess the mechanical effects of cement augmentation in osteoporotic fractures.
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A case report. ⋯ This case confirms the existence and clinical relevance of the fourth column of the thoracic spine and its role in providing added spinal stability in the patient with ankylosing spondylitis. As such, it is still possible to achieve a favorable clinical outcome in a select subpopulation of patients with ankylosing spondylitis that sustain three-column flexion-distraction injuries who are neurologically intact and are not candidates for surgical stabilization.
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The results for 37 surgical interventions in 31 consecutive patients with non-small cell lung cancer (NSCLC) with symptomatic spinal cord compression were reviewed retrospectively. ⋯ Even though lung cancer is considered an aggressive tumor, it is justifiable to aggressively treat patients with symptomatic spinal cord compression. Surgery by PTA can lead to good results in these patients.
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A retrospective study was performed through measurements on MRI images in adolescent idiopathic scoliosis (AIS) patients and age-matched adolescents. ⋯ Tonsillar ectopia with the extent >2 mm in AIS patients should be regarded as abnormal. AIS patients had a lower tonsil position and a higher prevalence of tonsillar ectopia than controls, and tonsillar ectopia was found to be associated with curve patterns. It is suggested that a lower position of the cerebellar tonsil might be associated with the etiopathogenesis of AIS and might contribute to subclinical neurologic dysfunction in AIS patients.